package com.cjh.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.cjh.common.BaseContext;
import com.cjh.common.R;
import com.cjh.entity.Employee;
import com.cjh.service.EmployeeService;
import org.slf4j.Logger;
import org.springframework.util.DigestUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@RestController
@RequestMapping("/employee")
public class EmployeeController {
    private static final Logger log = org.slf4j.LoggerFactory.getLogger(EmployeeController.class);
    @Resource
    private EmployeeService employeeService;

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if (emp == null) return R.error("登录失败");
        //4、密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)) return R.error("登录失败");
        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0) return R.error("账号已禁用");
        //6、登录成功，将员工id存入Session并返回登录成功结果
        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        BaseContext.setCurrentId(emp.getId());
        return R.success(emp);
    }


    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    @PostMapping
    public R<String> save(HttpServletRequest request, @RequestBody Employee employee) {
        //设置初始密码123456，需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        //获取当前登录账户
        Long empId = (Long) request.getSession().getAttribute("employee");

        //记录创建时间
       // employee.setCreateTime(LocalDateTime.now());
        //记录修改时间
       // employee.setUpdateTime(LocalDateTime.now());
        //设置创建者的id
       // employee.setCreateUser(empId);
        //记录修改者的id
       // employee.setUpdateUser(empId);

        //数据库保存员工信息
        employeeService.save(employee);
        //返回信息
        return R.success("新增员工成功");
    }

    @GetMapping("/page")
    public R<Page<Employee>> page(int page, int pageSize, String name) {
        //打印日志
        log.info("page={}.pagesize={},name={}", page, pageSize, name);
        //构造分页构造器
        Page<Employee> pageInfo = new Page<>(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(!StringUtils.isEmpty(name), Employee::getName, name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);
    }


    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){

        employeeService.updateById(employee);
        return R.success("");
    }


    @GetMapping("/{id}")
    public R<Employee> add(@PathVariable Long id){
        LambdaQueryWrapper<Employee> wrapper=new LambdaQueryWrapper<>();
        wrapper.eq(Employee::getId,id);
        Employee emp = employeeService.getOne(wrapper);
        return R.success(emp);
    }
}
